Question

two vectors are parallel to each other if their cross product is zero true false​

Answer 1

Explanation:

When the angle between →u and →v is 0 or π (i.e., the vectors are parallel), the magnitude of the cross product is 0. The only vector with a magnitude of 0 is →0 (see Property 9 of Theorem 84), hence the cross product of parallel vectors is →0.